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Multifunctionality vegetable oil-based acrylate and its preparation method and application

An oil-based acrylate, multi-functional technology, applied in sulfide preparation, organic chemistry, coating and other directions, can solve the problems of petroleum-based UV curing coatings not easy to degrade, ecological environment damage, environmental pollution, etc., to improve cross-linking Density, increased flexibility, improved related properties

Active Publication Date: 2022-02-01
SOUTH CHINA AGRI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, most of the acrylates in UV-curable coatings come from petroleum resources. Due to the shortage of petroleum resources, petroleum-based acrylates are used in the coating industry, and the price is relatively expensive, and petroleum-based UV-curable coatings are not easy to be degraded. It will cause environmental pollution and cause a certain degree of damage to the ecological environment

Method used

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  • Multifunctionality vegetable oil-based acrylate and its preparation method and application
  • Multifunctionality vegetable oil-based acrylate and its preparation method and application
  • Multifunctionality vegetable oil-based acrylate and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A preparation method of polyfunctional castor oil-based acrylate, comprising the steps of:

[0049] (1) Add oleic acid (10.00g), thioglycolic acid (3.80g, purity 90%) and 5% photoinitiator (2-hydroxy-2-methanol) in a quartz test tube with a magnetic rotor Propiophenone 0.69g), placed in a photochemical reaction apparatus, and irradiated with ultraviolet light with a wavelength of 365nm at room temperature for 6h to obtain oleic acid-based dicarboxylic acid. The molar ratio of oleic acid to thioglycolic acid is 1:1.05.

[0050] (2) Add oleic acid (10.00g), thiomalic acid (5.70g, purity 98%) and photoinitiator (2-hydroxy-2 - methyl propiophenone 0.79g), placed in a photochemical reaction apparatus, and irradiated with ultraviolet light with a wavelength of 365nm at room temperature for 6h to obtain oleic acid-based tricarboxylic acid. The molar ratio of oleic acid to thioglycolic acid is 1:1.05.

[0051] (3) Add castor oil (10.00g), thiomalic acid (5.01g, purity 98%) a...

Embodiment 2

[0057] A preparation method of multifunctional castor oil-based acrylate, which is the same as Example 1 except for the following steps: castor oil-based hexavalent acrylate (9.00g), oleic acid-based dibasic acrylate (1.00g) and photoinitiated The prepolymer (0.30g) was placed in a 20mL glass bottle with a magnetic rotor and stirred evenly, and then the prepolymer was spread on a glass plate with a 500μm applicator, and irradiated for 30s under a UV-LED light source with a wavelength of 365nm to obtain Light curing film. The mass ratio of the castor oil-based six-basic acrylate and oleic acid-based tribasic acrylate is 9:1, and the content of the photoinitiator is the total amount of castor oil-based hexa-basic acrylate and oleic acid-based dibasic acrylate 3wt%.

Embodiment 3

[0059] A preparation method of multifunctional castor oil-based acrylate is the same as Example 2 except for the following steps: the mass ratio of the castor oil-based hexavalent acrylate to oleic acid-based diacrylate is 8:2.

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Abstract

The invention relates to a preparation method of multifunctional vegetable oil-based acrylate, which uses oleic acid to react with thioglycolic acid and thiomalic acid respectively to prepare oleic acid-based dicarboxylic acid or oleic acid-based Tribasic carboxylic acid, and then react with glycidyl methacrylate to prepare multifunctional oleic acid-based acrylate; then use vegetable oil and thiomalic acid to prepare vegetable oil-based polycarboxylic acid by light click reaction, and then use this Preparation of multifunctional vegetable oil-based acrylates by reaction with glycidyl methacrylate. The present invention enhances the crosslinking density of the cured film by increasing the functionality of the prepolymer itself, and adjusts the crosslinking density of the cured film by adjusting the content of oleic acid-based polyacrylic acid, thereby enhancing the tensile strength of the cured film and enhancing its pencil Hardness, enhance its chemical corrosion resistance, improve the flexibility of light-cured film, introduce rich bio-based raw materials such as oleic acid and vegetable oil, reduce the use of petrochemical resources in light-cured coatings.

Description

technical field [0001] The invention belongs to the field of UV curing materials, and in particular relates to a multifunctional vegetable oil-based acrylate and a preparation method and application thereof. Background technique [0002] The main components of UV-curable coatings include oligomers, reactive diluents and photoinitiators, among which, the main components of oligomers and reactive diluents are mostly acrylates. Acrylates can be generally divided into difunctionality, trifunctionality, hexafunctionality and multifunctionality according to their functionalities. properties of light-cured films. However, until now, most of the acrylates in UV-curable coatings come from petroleum resources. Due to the shortage of petroleum resources, petroleum-based acrylates are used in the coating industry, and the price is relatively expensive, and petroleum-based UV-curable coatings are not easy to be degraded. It will cause environmental pollution and cause a certain degree ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C319/16C07C319/20C07C323/52C09D4/02
CPCC07C319/16C07C319/20C07C323/52C09D4/00
Inventor 袁腾黄锦清肖亚亮李小平杨卓鸿
Owner SOUTH CHINA AGRI UNIV
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